Originally Posted by
SanDiego1K
This is the neck pillow by which I swear. It's flat for packing. I blow it up when I want to use it. The ribbing in the middle keeps it flat behind my neck. I can inflate it to whatever level I want, just a bit less than full, to provide support to my head on both sides.
I have something similar I bought from Tokyo 4 years ago (and still going strong); blows up very quickly and deflates quietly as well.